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Fofino [41]
3 years ago
14

The number of elements in 2CH4

Chemistry
1 answer:
ozzi3 years ago
8 0

Answer:mnedd kfj

Explanation:

fr rb r

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The mass of a single uranium atom is 4.70x10^-22 grams. How many uranium atoms would there be in 111 milligrams of uranium?
emmainna [20.7K]

2.4 x 10²² atoms

<h3>Further explanation</h3>

Atomic mass is the average atomic mass of all its isotopes  

In determining the mass of an atom, as a standard is the mass of 1 carbon-12 atom whose mass is 12 amu  

So the atomic mass obtained is the mass of the atom relative to the 12th carbon atom  

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then for 111 mg=0.111 g

\tt \dfrac{0.111}{4.7\times 10^{-22}}=2.4\times 10^{22}

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How is the Nazca plate moving in relation to the Pacific plate?
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3 years ago
All organic molecules have what element in common
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Every organic molecules/compound contains carbon (c).

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.One ballon is filled with Hydrogen (H2) gas, the other balloon is filled with methane (CH4). Both balloons have the same temper
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C. The balloon with CH4 has the same moles of gas molecules as the balloon with H2

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Based on combined gas law, gases under the same pressure, temperature and volume have the same number of moles. With this information we can say the rigth statement is:

<h3>C. The balloon with CH4 has the same moles of gas molecules as the balloon with H2</h3>
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